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Finding the Fourth Proportional to 500,389.88, 750,662.60 and 168,043.64

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Solution

The fourth proportional to 500,389.88, 750,662.60 and 168,043.64 is: 252,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,389.88 : 750,662.60 = 168,043.64 : x
  2. Step 2: Convert to fraction form
    500,389.88/750,662.60 = 168,043.64/x
  3. Step 3: Cross multiply
    500,389.88x = 750,662.60 × 168,043.64
  4. Step 4: Simplify right side
    500,389.88x = 126,144,071,122.33
  5. Step 5: Solve for x
    x = 126,144,071,122.33/500,389.88
  6. Step 6: Final answer
    x = 252,091.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.